meta: (from Greek: μετά = "after", "beyond", "with") a prefix often used in English to indicate a concept that is an abstraction of itself and is used to complete, critique, or add to that from which it was derived.

dasein: a concept created by Martin Heidegger and explained in Being and Time. In German, "dasein" is synonymous with "existence"; translated literally, it means "being-there". Heidegger uses the word to refer to a type of being. However, in this sense, Dasein is not a subject (i.e. a being which has subjective experiences of objects). Instead, for Heidegger, Dasein implies a primal quality of being—a thrown projection, which is interpreting and understanding the world in terms of authentic or inauthentic possibilites and pointing to what it means to be. As such, it connotes a being that is constituted by its temporality and, in an ontologically recursive sense, one whose existence is in question.